Improvement in animal-shearing machine



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RoswnLL T. sMrrn AND JOSEPH K'. ISRIEST, or NASHUA, New HAMPSHIRE,ASSIGNoRs 'fro .'rnnMSnLv'Es, WILLIAM nAnLn, Jn., AND J. e. BLUNT, AonSAME PII-Aon.

11mm Patent Mesero, ma Merch 3o', 1869. j

. ,Tho Medule tefen'edto in these Letters Patent and making partp thesame.

To all perso/ns to whomgthcse esente may cpme.-

Be it known that we', RoswnLL T.' SMIrnJand J o- SEPH K. Pnrnsr, ofNashua,'in the county of Hillsborough, and State of Nfw `Hampshire,haveyinvented l an Improved Animal-Shearing Machine; and do hereby declarethe same to be fully described in the follow- :ing specification, andrepresented in theaccompanying drawings, of which- Figure 1 denotes aside elevation of 'our said inav chine.

Figure 2 is a top vient-.of it.

Such other igures'as may be necessary to a full and clear representationof our improvementswill be hereinafter referred to and explained. j

The machine` while embodyingmany ofthe characteristics of the mechanismshown in the United States patents numbered 59,089, 66,052, a n dV 72,013,l involves,

others of value andl irlrjfiofrtance.

The purpose ol the" said Inachineis to shear, or clip the hair or,wool.of an animal while on the body7 of such animal and it s-highlyuseful for shearing the Wool of a sheep or the hair of a'horse.

In the drawings- A denotes' a standard, which is forked at its upperpart, and is there pivoted, or jointed to a furoated A shaft, a, atthejunction of the two, carries two grooved wheels,'or pulleys b c,around the lesser 'ofY which, and a driving-pulley, d, arranged on anaxle projecting from the standard, is an endless crossed band,e.' Q

Around the larger pulley, b, and another pulley f,

fixed on a`shaft, y, which is 'sstained within a swivel,

a, applied to the ar B, an endless band, h, travels.

A stirrnp, C, suspended from the 'shaft g, so as' to be capable ofturning thereon, supports a shaft, t, which -depends from a bevf'elledpinion, k, that engages with a bevelled gear, l, rigged pn the shaft g,the whole being so that when the-driving-wheel d isput in revolution,

rotary motion op or about its axis shall be. imparted tothe shaft fi. f

` A rod, m, extending through a hole in the arm B,- and held to the armbya set-sorew,n, rests on the top of the standard A.

A weight, lo, is hung upon the outer end of the said l1od,'aud serves tobalance the weight of the arrn B, and the mechanism connected with it.By sliding the l weight-rod more or less longitudinally, we can adjustthe -weight'so as to obtain the necessary circular bal-1 The shaft p issupported by, and soas tn be capableV of revolving-within a f urcatedarm, D, which, atits lower part, supports, in suitable bearings lr lr, ashaft, s, which is arranged at right angles 'with the shaft p, andconnected with it'by bevelled gears t u, the same being so as to causethe shaft s to derive rotary motion from the shaft i.

` A shield, or cap, Z, fastenedto the arnID, covers the said gears, andprotects them from=dirt or injury, or laineuts of hair or wool. r A

' The shaft s is also supported withina case, u', projecting from oneendxof al tubular handle, E, but separate therefrom. The said casfe uisprovided .with a cover, d2, secured in 'place -by screws e? j. The ca sefully surrounds the.gear within it on both sides, -as

Well as the periphery-. thereof', and protects such from' .dust,fand inother'respects.'V l

;.1 As'afnuoydulysupported; runsithrough'the l1"andle .-axially, and has-on one-end abevelled gear, c', to en?"` gage with alargerbevel-gearw,rx'ed on the shaft s,

and arranged within thecase u.

The said ,shaft c'is supportedwithin and projects from the case u". '1 iThe handle should be capable .of being eely revolved on the'shaft, itbeing kept in place thereon by means of a collar, zt, and a'setscrew,w', going through 'the collar, and being screwed against the shaft.

The handle consti-tutes partof a carrier, or frame, F, by which acutter-shaft, y, is supported, Such shaft being arranged 'and connectedwith the shaft c, by bevelled gears z c', arranged as represented.

The shaft y isplaced at rightv angles with the shaft c. At and fixed tothe lower end of the shaft y is a cutter-head, b1.'

The upper end ofthe' shaft y is pivoted against a presser, c', formedand arranged as shown in the drawings, and made adjustableinposition bya screw, d, and two nuts, el f, one of which is a cheek tothe other,arranged on such'screw,`the -screw being Vprojected from the carrier F.

-'A passage, g made through the presser to its shazpivot, serves toenable the latter to be supplied with oil, which may be introduced to itthrough such passage- The object of the presser and its adjustmentsis tocause the 'knife H to beforced against, and kept in v due relation to aserrated cutter-plate, Gr, formed as represented in under-side view 'ing. 5.

The said plate is held to the carrier F by. means of a clamp-screw, g2,and a nut, h', arranged as shown in the drawings. lh'e cutter-plateis'further supported in position by a stud, c', which extends from theoar- I'ier F, and goes into, a hole inthe shank, or rear part oftheplate. I

Figure-6 is a top view, and

Figure 7, an edge View of the cutter, or knifev H,

which is curved, as shown in the latter `figure, and is made ofspring-steel. Vlit ls formed with a polygonah,

'to revolve the knife, and press it against the cutterv shaft by afeather-connection, or a stud,.n, projected F, goes around the bearingm',so as to protect the `joint between such .and the head b from fibresof wool and also preventsit'from'clogging the.

` of the carrier F, and presses thecutter-plate dat against vthe surfacefrom which the hair or, wool is to be cut,

eye, i', to fit on' a corresponding projection, 7c', made i on the endof the shaft y, and from a shoulder l2, formed g on the shaft, the samebeing so as to enable the shaft plate G.

The cutter-shaft should be so applied to its driving gear, viz, by aspline-aud-feather connection, shown at as to be capable of being movedby the presser endwise through such gear, in order that the knife H maybe pressed into contact with the cutter-plate G. The knife rests in anotch, or recess, l, made in the cutter-head b, which slips on the shafty, and encompasses its lower bearing, m', and is connected to the om theshaft and into a groove, o', formed in the head. (See Figure 8, which isan under-side View of the said head b.) v

The object of making the knife H curved, and to spring as described, is,vto keep it in proper vContact with the cutter-plate, so that the twomay operate like the blades of a pair of shears. They will not do thisto so goodadvantage when the knife is a straight one, as it 'will notspring and adapt o r adjust its edge to that of each tooth' of thecutter-plate while passing lt, as it does when made in our improvedmanner, and pressed up to the plate by the action of a presser' appliedto the cutter-shaft, as described.

A cylindrical guard, p', extended from the carrier or hair, whichotherwise might get into and pack in such joint while the machine may bein operation.

A cap, or case, {,iiXe'd on the carrier F, covers the bevel-gears z al,by which the shaft y is revolved. The shield, or cutter-head b" revolveswith the rotary cutter, and supports the material when being cut,

cutters. In using thenachina an operativeseizes the Vhandie or sheared,and as the shearing progresses, he should move the carrier so as toadvance the cutter-plate along the path in which it is totravel. He canturn the cutter-plate in any direction with great facility, and thecutter will continue vtoy revolve in the mean time, provided thedriving-wheel be put in revolution.

We herein make no claim to the shearing-machine described andrepresented in Letters Patent, No. 59,- 089, granted to one of theundersigned,` viz, R.' T.

SMITH. Nor do we herein claim the improved joint Whichlconstitutes thesubject of Detters Patent, No. 66,052, granted. to one of us, viz, thesaid SMITH. Nor do we herein claim the subject or subjects of LettersPatent, No. 72,103, granted to both of us.

What we claim'as' our present invention or improve- ,ments withreference thereto, may be stated as follows:

1'. In a shearing-machine, ofthe kind described, we-

claim the combination'of the presser c', and its adjusting, orpresser-screw or screws, or the equivalent therefor, with thecutter-shaft y, the cutter H, and the eutter-plate G, as described. 2.We also claimfthe presser, as made with the oil- A ing-passage arrangedwithin its head, or point, substantially as set forth. j 3. We alsoclaim the 'combination ofthe gear-case', or box uwith the carrier F, thesamebeing to swivel, with respect to the, handle of the carrier, andextend about, and entirely cover the gears contained in such case u', asspecified, i

4. We also claimithe combination and arrangement of the cap, or easel?,with the bevel-gears therein, and the shaft-supporter, or swivel-armv D.y

y5. We also claimthel-applieation of the cutter-shaft to its bevel-gear,so` as to be capable of being moved endwise through it, and of beingrevolved by it, as and for the purpose specified. 6. We also claim 'thecombination and arrangement lof the guard p' with the shaft-bearing m',andthe cutter-head, or shield b.

R. T. SMITIEIA l J. K. PRIEST. Witnesses:

' E. P. Emnksoiv,

O. M. RoBm'SoN.'

